发明名称 |
Radial tire for heavy load vehicles |
摘要 |
A radial tire for heavy load vehicles such as light trucks, trucks, busses, super-large type construction vehicles, etc. is disclosed. The radial tire comprises a carcass ply composed of a steel cord ply and wound around a bead core from the inside toward the outside thereof to form a turn-up portion. The upper end of the turn-up portion is upwardly extended to a position located between a point passing over the maximum width point of the carcass ply expanded by applying an internal pressure to the tire and a point where a normal drawn perpendicular from a hump to the carcass ply crosses with the carcass ply. The turn-up portion of the carcass ply is separated from the carcass ply by means of a soft rubber layer composed of rubber having a Shore A hardness which is smaller than a Shore A hardness of a coating rubber of the carcass ply and a 300% modulus of elasticity which is 50% to 85% of a 300% modulus of elasticity of the coating rubber of the carcass ply. |
申请公布号 |
US4086948(A) |
申请公布日期 |
1978.05.02 |
申请号 |
US19760708451 |
申请日期 |
1976.07.26 |
申请人 |
BRIDGESTONE TIRE COMPANY LIMITED |
发明人 |
SUZUKI, YASUO;TAMURA, AKIRA;SUGIHARA, SHIGERU;TEZUKA, TOSHIRO |
分类号 |
B60C9/02;B60C9/08;B60C13/00;B60C15/00;B60C15/06;(IPC1-7):B60C9/00 |
主分类号 |
B60C9/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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